Just curious, did you learn coding just for Lust Doll (or general game making) or you have experience in coding then decide to make games? Making plugins sounds pretty tough.
I was learning coding and game making long before I ever started Lust Doll! I basically started in high school XD. Making plug-ins isn't too bad, though there's a huge difference between making something for the public, versus something that only you will ever use.